19184780

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 41583360

約数和(自身を除く): 22398580

約数列:

[1, 2, 4, 5, 10, 20, 67, 103, 134, 139, 206, 268, 278, 335, 412, 515, 556, 670, 695, 1030, 1340, 1390, 2060, 2780, 6901, 9313, 13802, 14317, 18626, 27604, 28634, 34505, 37252, 46565, 57268, 69010, 71585, 93130, 138020, 143170, 186260, 286340, 959239, 1918478, 3836956, 4796195, 9592390, 19184780]

約数ペア:

[(1, 19184780), (2, 9592390), (4, 4796195), (5, 3836956), (10, 1918478), (20, 959239), (67, 286340), (103, 186260), (134, 143170), (139, 138020), (206, 93130), (268, 71585), (278, 69010), (335, 57268), (412, 46565), (515, 37252), (556, 34505), (670, 28634), (695, 27604), (1030, 18626), (1340, 14317), (1390, 13802), (2060, 9313), (2780, 6901)]